Who isn't fond of a great game of hopscotch? We love the idea of a hopscotch mat (like this hopscotch rug) that allows an impromptu game even when it's rainy or snowing outside.
Not only is this mat great for indoor hopscotch play, but you can use it as a good looking playmat in a nursery or playroom. Or even as a picnic blanket outdoors. It's available for $35 by Etsy seller CoolSpacesForKids.